US Patent No. 10,330,266

LED WITH THERMO-RESPONSIVE BLACK-BODY LINE DIMMING


Patent No. 10,330,266
Issue Date June 25, 2019
Title Led With Thermo-responsive Black-body Line Dimming
Inventorship Hugo Johan Cornelissen, Eindhoven (NL)
Jianghong Yu, Eindhoven (NL)
Giovanni Cennini, Eindhoven (NL)
Dirk Jan Broer, Eindhoven (NL)
Kamlesh Kumar, Eindhoven (NL)
Assignee SIGNIFY HOLDING B.V., Eindhoven (NL)

Claim of US Patent No. 10,330,266

1. A lighting device comprising a light source configured to generate light source light and a light converter element, wherein the light converter element comprises a light transmissive matrix, wherein the light transmissive matrix comprises:(i) a first luminescent material configured to convert at least part of the light source light into a first luminescent material light; and
(ii) a thermo-responsive liquid crystalline compound;
wherein the first luminescent material is formed as a plurality of regions embedded in the thermo-responsive liquid crystalline compound,
wherein the light transmissive matrix is configured to be in thermal contact with the light source,
wherein the lighting device is further configured to provide lighting device light comprising said light source, and said first luminescent material light, and
wherein said light converter element is arranged for changing one or more of the color and color temperature of the lighting device light with the electrical power provided to the light source.